Volume 104, Issue 10, 15 November 2008
Index of content:
104(2008); http://dx.doi.org/10.1063/1.3021148View Description Hide Description
The temperature dependence of the refractive indices of GaN and AlN was investigated in the wavelength range from the near band edge (367 nm for GaN and 217 nm for AlN) to 1000 nm and the temperature range from room temperature to . Optical interference measurements with vertical incident configuration were employed to precisely evaluate the ordinary refractive indices.
104(2008); http://dx.doi.org/10.1063/1.3003567View Description Hide Description
High-resolution detection of specific molecules in cells is a major challenge in biology. We show that infrared scanning near-field microscopy can detect the spatial distribution of -amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid–type glutamate receptor clusters on hippocampal neurons. The GluR2 subunits were labeled with the die Alexa 488 and high-resolution infrared micrographs were taken at . The absence of photobleaching makes this approach suitable for a long-term observation and allows to localize different infrared-absorbing molecules over the complex background of other cell components.